Go on OTB speed, you can get some good spawnkilling that will attract soo many new players!!!
Before you start making videos to attract people, make sure you have something better then windows movie maker, also make sure you have a nice set of hr4 textures. Otherwise your videos will look pretty bad. I'm sure if you get on IRC and ask people for passwords for their matches; and after ask for certain demos from it, people wont have a problem. It's more annoying to have to find demo's, not that bad when people ask for specific ones.
So- What programs are you using to record and make the video?
Do you have hr4?
Do you have mIRC or planning to do all this through forums and pubs?